Page 1 SnapScale Overland ™ Storage Administrator’s Guide For a Clustered Network Running RAINcloudOS ™ Version 4.0 December 2013 10400455-001...
Page 2 Overland Storage. Overland Storage provides this manual as is, without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Overland Storage may make improvements or changes in the product(s) or programs described in this manual at any time.
Page 3: Software Updates
Follow the appropriate link on that page to download the latest software file or document. For additional assistance, search at http://support.overlandstorage.com. Overland Technical Support For help configuring and using your SnapScale cluster, email our technical support staff at: techsupport@overlandstorage.com. You can get additional technical support information on the...
Page 4: Typographical Conventions
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Preface Conventions This document exercises several alerts and typographical conventions. Alerts Convention Description & Usage IMPORTANT An Important note is a type of note that provides information essential to the completion of a task or that can impact the product and its function.
Page 5: Table Of Contents
Connecting for the First Time ..........................2-1 Connect Using the Node Name ........................2-1 Connect Using SSM ............................2-2 Create a New SnapScale Cluster (via Wizard) ....................2-3 Step 1 – Select SnapScale Nodes .........................2-3 Step 2 – Client Network Configuration Overview ..................2-5 Step 3 – Choose Client Network Static TCP/IP Settings ................2-5 Step 4 –...
Page 6 Supported Network Manager Applications and MIBs ................4-22 Configure SNMP ............................4-22 Web Access ................................4-23 Configuring HTTP/HTTPS ..........................4-23 Using Web Root to Configure the SnapScale as a Simple Web Server ..........4-24 iSNS Configuration ..............................4-27 Chapter 5 - Storage Options Peer Sets ................................5-1 Peer Sets and Recovery ..........................5-2...
Page 7 Scheduling Snapshots ..........................5-26 Edit Snapshot Properties ..........................5-27 iSCSI Disks ................................5-27 Configuring iSCSI Initiators ...........................5-27 iSCSI Configuration on the SnapScale .......................5-27 Create iSCSI Disks ............................5-29 Edit iSCSI Disk Properties ..........................5-31 Delete an iSCSI Disk ............................5-32 Configuring VSS/VDS for iSCSI Disks ......................5-32 Nodes ...................................5-35...
Page 8 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Contents Delete Group ..............................6-24 Security Models ..............................6-25 Managing Volume Security Models ......................6-25 ID Mapping .................................6-25 Add Mapping ..............................6-26 Change Mapping ............................6-29 Auto Mapping ...............................6-31 Remove Mappings ............................6-33 Remove Missing ID Mappings ........................6-36 Filesystem Updates ............................6-37 Home Directories ..............................6-37 Configure Home Directories ........................6-38...
Page 9 Security Personalities and Security Models ....................B-4 Windows ACLs ..............................B-4 Appendix C - RAINcloudOS Ports Appendix D - Troubleshooting LED Indicators ............................... D-1 SnapScale X2 Node LEDs ..........................D-1 SnapScale X4 Node LEDs ..........................D-3 Network Reset ..............................D-3 Master Glossary & Acronym List Index 10400455-001 Dec 2013 ©Overland Storage, Inc.
Page 10: Chapter 1 - Overview
Node Port Configurations SnapScale Conventions The SnapScale cluster supports three or more nodes hosting redundant sets of data for data protection. An Administrator can configure, add, or remove nodes on demand to change storage requirements. The overall storage system is able to easily grow from three nodes to meet your needs.
Page 11: Snapscale Node Requirements
• Uninitialized node – an independent node that has not yet been joined to a SnapScale cluster. • SnapScale node – a healthy node that is a member of a fully-configured SnapScale cluster. Both 2U nodes with up to 12 drives and 4U nodes with 36 drives are available.
Page 12: Raincloudos Specifications
Requirement Detailed Description Common Storage network To form or join a SnapScale cluster, each Uninitialized node must be connected to the same Storage network as the other nodes. Storage network links To form or join a SnapScale cluster each Uninitialized node must have connectivity (active link) on both Storage network ports.
Page 13: Raincloudos 4.0 Features
NOTE: For details and descriptions of all the new features and a list of other improvements to the operating system, see the Product Release Notes on the Overland SnapScale website. With the release of RAINcloudOS 4.0, the following features and functionality are now...
Page 14: Client And Storage Networks
Both have been improved for faster results. Client and Storage Networks SnapScale requires two separate networks to function correctly: A public network (Client) and a private network (Storage). To support failover, two Storage network switches must be connected together (using a 1GbE or 10GbE cable between the switches). Each of the two Storage network ports on the node need to be connected to a different Storage switch.
Page 15: Node Port Configurations
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Node Port Configurations IMPORTANT: If using fibre cables, you must use Overland-approved SFP+ modules. With the cluster powered OFF, insert the modules into the card and switch ports. Connect the fibre cable between the two SFP+ modules and restore power to the cluster.
Page 16: X4 Node Configurations
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Node Port Configurations Dual 10GbE. The dual-card configuration uses the left 10GbE card ports for the Client connections and the right 10GbE card ports for the Storage connections. The 1GbE ports are not used. Storage Client...
Page 17 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Node Port Configurations Configuration Node GbE Ports Network Switch Single 10GbE X4 Ports 1, 2, 3, & 4 Client (public) Slot 7 10GbE Card Storage (private) (ports 5 & 6) Dual 10GbE. The dual-card configuration uses the left 10GbE card ports for the Client connections and the right 10GbE card ports for the Storage connections.
Page 18: Chapter 2 - Setup And Configuration
This section covers the initial setup and configuration of an individual SnapScale node running RAINcloudOS 4.0. It also addresses how to use that node to set up a SnapScale cluster of three or more nodes, or to add the node to an existing SnapScale cluster.
Page 19: Connect Using Ssm
4. In the login dialog box, enter admin as the user name and admin as the password (the system defaults), then click OK . 5. Complete the Initial Setup Wizard to either create a new SnapScale cluster or join an existing cluster.
Page 20: Create A New Snapscale Cluster (Via Wizard)
On a new node, once you log in, the Initial Setup Wizard runs displaying the Welcome page. From the Initial Setup Wizard, you can use this node to create a new SnapScale cluster by connecting to two or more other nodes. Click Create a New SnapScale to start the wizard.
Page 21 Any combination of node types (X4 and X2) can be used to create a cluster. Verify that the boxes in the Add to SnapScale column for the nodes you want to use are checked. Click Re-Detect Available Nodes to refresh the list. When ready, click Next .
Page 22: Step 2 - Client Network Configuration Overview
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Create a New SnapScale Cluster (via Wizard) Step 2 – Client Network Configuration Overview Review the information about setting up your Client network. Click Next to continue. Step 3 – Choose Client Network Static TCP/IP Settings Use this step to specify the static TCP/IP settings that will be common to all nodes in the cluster.
Page 23: Step 4 - Configure Node Static Ip Addresses
Step 4 – Configure Node Static IP Addresses A SnapScale cluster requires a set of static IP addresses: one for each node, and one for the Management IP. Use this page to specify the static IP addresses for each of your nodes and for the SnapScale Management IP address used to access the Web Management Interface for this cluster.
Page 24: Step 5 - Basic Snapscale Properties
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Create a New SnapScale Cluster (via Wizard) Step 5 – Basic SnapScale Properties Use this step to enter the basic properties for your new SnapScale cluster, then click Next . This table lists and describes the basic options: Option...
Page 25: Step 6 - Set Date And Time
Check the box and select the percentage of the storage Snapshots space you want to reserve for snapshots. It is recommended that at least 20% of your SnapScale storage space be set aside for snapshots. NOTE: Once the SnapScale cluster is created, the storage space reserved for snapshots can only be decreased.
Page 26: Step 7 - Summary Verification & Cluster Creation
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Create a New SnapScale Cluster (via Wizard) Click Next to continue. Step 7 – Summary Verification & Cluster Creation At this step, review the current settings and go back if you need to make changes. NOTE: Make note of the Management IP address for later use. Also, both the Client and Storage network bond types can be changed after the cluster is created.
Page 27 Create a New SnapScale Cluster (via Wizard) Click Create New SnapScale to complete the process. A confirmation page is shown. Click Create New SnapScale again to create the cluster. A progress bar is displayed as the SnapScale cluster is created.
Page 28 Complete the registration fields and then click Download Registration File . Email that file (SnapScaleRegistration.csv) to Overland Storage Service (warranty@overlandstorage.com) using the subject line “SnapScale Registration Request” to initiate your warranty coverage. (See To Register Your Cluster Chapter Click Close .
Page 29: Join An Existing Snapscale Cluster (Via Wizard)
When you log into any of the new, uninitialized nodes, the Initial Setup Wizard launches displaying the Welcome page and its two options. To add this and other nodes to an existing SnapScale cluster, click Join an Existing SnapScale . 10400455-001 Dec 2013 ©Overland Storage, Inc.
Page 30: Web Management Interface
IP addresses, and confirm the settings. NOTE: If no existing SnapScale cluster is detected, a warning is displayed. Verify that the node is on the same Storage network as the other nodes in the cluster, then click Re-Detect SnapScale.
Page 31 Admin Home page, only the Web Home page is available. Snap Finder – Click this icon to view a list of all SnapServers, SnapScale clusters, and Uninitialized nodes on your network, and to specify a list of remote servers that can access these servers, clusters, and nodes on other subnets.
Page 32: Alert Messages
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Web Management Interface Icons & Options Description Click the Mgmt. Interface Settings link in the Site Map to UI Appearance choose a background for the Web Management Interface. You can select either a solid-colored background or a textured-graphic background.
Page 33: Site Map
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Web Management Interface When a cluster is restarted, the Web Management Interface shows the status while the cluster is booting. Because some components are not immediately available, an alert message is displayed showing the percent done and as a reminder that the process is not complete, some nodes may appear offline, and so forth.
Page 34: Contact Information
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Web Management Interface Contact Information From the Web Management Interface, click the SnapScale logo in the upper left corner of the Web Management Interface to display the pertinent hardware, software, and contact information: Scroll down to view additional contact information. Click either Close or outside the box to dismiss.
Page 35: Chapter 3 - Snapscale Settings
SnapScale Settings Chapter 3 This section covers the initial setup and configuration of a SnapScale cluster of three or more nodes. The four basic options for cluster settings are found under the SnapScale tab. They can also be accessed using the site map icon ( Topics in SnapScale Settings: •...
Page 36: Snapscale Properties
SnapScale/RAINcloudOS 4.0 Administrator’s Guide SnapScale Properties SnapScale Properties These basic options are found under SnapScale Properties : This table details the options on the SnapScale Properties page: Option Description SnapScale Name and Either accept the default cluster name or enter an Description alphanumeric name up to 15 characters in length.
Page 37: Date/Time
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Date/Time Date/Time You can set the cluster date and time manually or have it set automatically via NTP or Windows Active Directory domain membership. Nodes automatically synchronize time with one another. An ISO 8601 time stamp is applied when recording node activity in the Event Log ( Monitor tab), when creating or modifying files, and when scheduling snapshot operations.
Page 38: Configure Date And Time Settings For Automatic Synchronization
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Date/Time NOTE: RAINcloudOS automatically adjusts for Daylight Saving Time, depending on your time zone. Configure Date and Time Settings for Automatic Synchronization If the cluster is not joined to a Windows Active Directory domain, you can use the automatic synchronization option to configure the cluster to set date and time automatically via Network Time Protocol (NTP).
Page 39: Ssh
This page provides the ability to enable/disable Secure Shell (SSH) on the cluster for security purposes. By default, it is enabled. SnapScale supports automatic shutdown when receiving a low-power warning from an APC uninterruptible power supply (UPS). Use SnapScale > UPS to manage this feature: NOTE: If UPS devices have not been configured, the first time you select this option, you are automatically shown the UPS Properties page.
Page 40: Edit Ups Properties
SnapScale/RAINcloudOS 4.0 Administrator’s Guide NOTE: Select a UPS capable of providing power to a SnapScale node for at least ten minutes. In addition, in order to allow the cluster sufficient time to shut down cleanly, the UPS must be configured to provide power for at least five minutes after entering a low battery condition.
Page 41: Procedure To Configure Ups Protection
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Option Description Primary UPS Selecting the Network/Single option under UPS (Fourth column in Node table) Type causes a drop-down list to be displayed in this column. Select the primary UPS to associate with the node from the list (which is based on the Network UPS Devices table).
Page 42: Change Network Ups Device
SnapScale/RAINcloudOS 4.0 Administrator’s Guide 2. At the Add Network UPS Device page, enter: • IP Address of the device • APC User Name (usually the UPS administrator name, default is • APC Authentication Phrase (found under low battery shutdown configuration in the APC UPS interface;...
Page 43: Chapter 4 - Network Access
Chapter 4 This section addresses the options for configuring TCP/IP addressing, network bonding, and file access protocols. Network bonding options allow you to configure the SnapScale’s Client network for load balancing/failover, Switch Trunking, and Link Aggregation (802.3ad). Network file protocols control how network clients can access the cluster. Access to the cluster’s storage space is provided via Windows (SMB), UNIX (NFS), FTP/FTPS, and the...
Page 44: View Network Information
IMPORTANT: The default settings enable access to the SnapScale cluster via all protocols supported by the cluster. As a security measure, disable any protocols not in use. For example, if NFS access to the SnapScale is not needed, disable the protocol in the Web Management Interface under the Network tab.
Page 45 Aggregation (802.3ad) as the selected bonding. Management IP Address The IP address configured to access and manage the SnapScale cluster through the Web Management Interface. Node-specific Client Network Information Section Node The name of the specific node. The node designated as the Management node is so noted.
Page 46: Storage Network Information
SnapScale/RAINcloudOS 4.0 Administrator’s Guide View Network Information Storage Network Information This page shows the information on the private Storage network: Field definitions are given in the following table: SnapScale Storage Network Information Subnet Mask Combines with the IP address to identify the subnet on which the cluster's Storage network interfaces are located.
Page 47: Tcp/Ip Networking
Ethernet port (xx:xx:xx:xx:xx:xx). TCP/IP Networking SnapScale nodes ship with either four 1GbE or 10GbE ports at the rear for network connections. The Storage network ports are always bonded using Failover mode. The Client network ports are bonded by default using Load Balance (ALB), but can be changed after the cluster is created to one of the other bonding modes: •...
Page 48: Bonding Options
Use the drop-down list to select one of the four bonding modes for the Client network interface on all nodes. Static IP Address This table shows the SnapScale Management IP address and the pool of Client network static IP addresses to be automatically assigned by the cluster to the different nodes.
Page 49: Guidelines In Tcp/Ip Configuration
All Ethernet ports on the cluster nodes are set to autonegotiate speed and duplex settings with the Ethernet switch. The switch to which the SnapScale is connected must be set to autonegotiate; otherwise, network throughput or connectivity to the node may be seriously impacted.
Page 50: Edit Storage Network Properties
IMPORTANT: Changing the bond type for your SnapScale's storage network may require changes to your network switch. The bond type for the Storage network of a SnapScale cluster can be changed as needed. CAUTION: All cluster nodes must be online when their bond type is changed. After changing the bond type, the cluster must be restarted.
Page 51: Utility Ip Address
IP address pool, as well as the Management IP if the node serves as the Management node. IMPORTANT: The Utility IP address must be located on the same subnet as the SnapScale Client network. The address should be assigned BEFORE installing a backup agent or media server on a node.
Page 52: Windows/Smb Networking
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Windows/SMB Networking Only one Utility IP address can exist on a cluster. The Web Management Interface will not allow a new Utility IP address to be created if a Utility IP address currently exists, or when an address does not exist but there are one or more offline nodes (which may have an address already configured on them).
Page 53: Support For Windows/Smb Networking
NTP server. Support for Windows/SMB Networking The default settings make the SnapScale available to SMB clients in the workgroup named Workgroup. Opportunistic locking is enabled, as is participation in master browser elections. Consider the following when configuring access for your Windows networking clients.
Page 54: Support For Windows Network Authentication
This section summarizes important facts regarding the RAINcloudOS implementation of Windows network authentication. NOTE: When a SnapScale cluster joins a domain, it does so under its cluster name (Scalennnnnnn). When a domain user is authenticated on a node, the cluster name is used.
Page 55: Connect From A Windows Client
SnapScale using the guest account. Connect from a Windows Client Windows clients can connect to the SnapScale using either the cluster name or any IP address in the node IP address pool. However, if possible, clients should use the cluster name...
Page 56 For the Active Directory Domain option, see the following To Join an Active Directory Domain page 4-15. Workgroup Name The default settings make the SnapScale available in the workgroup named Workgroup. Enter the workgroup name to which the cluster belongs. Enable Guest Account Check the box to allow unknown users or users explicitly logging in to access the SnapScale using the guest account.
Page 57 Member Of Verify it shows Active Directory Domain. Domain Name The default settings make the SnapScale available in the workgroup named Workgroup. Enter the domain name to which the cluster belongs. NOTE: Windows 2000 domain controllers must run SP2 or later.
Page 58: Nfs Access
NFS Access NFS access to the cluster is configured on the NFS page of the Web Management Interface. By default, NFS access is enabled and any NFS client can access the SnapScale via NFSv3 with non-root access. NOTE: NFSv3 is enabled by default. NFSv2 and NFSv4 are not supported.
Page 59: Support For Nfs
NFS Access NFS client access to shares can be specified by navigating to Security > Shares and clicking the NFS Access link next to the share. You must configure the SnapScale cluster for the code page being used by NFS clients.
Page 60: Nis Domains
NIS domains are configured on the NIS page of the Web Management Interface. The SnapScale cluster can join an NIS domain and function as an NIS client. It can then read the users and groups maintained by the NIS domain. As such, you must use the NIS server to make modifications.
Page 61: Ftp/Ftps Access
By default, FTP and FTPS clients can access the cluster using the anonymous user account, which is mapped to the SnapScale cluster’s guest user account and AllUsers group account. You can set share access and file access for anonymous FTP users by modifying permissions for these accounts.
Page 62: Snmp Configuration
NOTE: FTP users cannot manage files or folders in the FTP root directory. SNMP Configuration The SnapScale can act as an SNMP agent. SNMP managers collect data from agents and generate statistics and other monitoring information for administrators. Agents respond to managers and may also send traps, which are alerts that indicate error conditions.
Page 63: Default Traps
SNMP trap options are hidden until the Enable SNMP Traps option is selected. Default Traps A trap is a signal from the SnapScale cluster or any individual node informing an SNMP manager program that an event has occurred. RAINcloudOS supports the default traps...
Page 64: Supported Network Manager Applications And Mibs
SnapScale clusters or nodes. Supported Network Manager Applications and MIBs SnapScale clusters respond to requests for information in MIB-II (RFC 1213) and the Host Resources MIB (RFC 2790 or 1514). You can use any network manager application that adheres to the SNMP V2 protocol with the SnapScale. The following products have been successfully tested with SnapScale clusters: CA Unicenter TNg, HP Open View, and Tivoli NetView.
Page 65: Web Access
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Web Access Option Description Location Enter information that helps a user identify the physical location of the cluster nodes. For example, you might include a street address for a small business, a room location such as Floor 37, Room 308, or a position in a rack, such as rack slot 12.
Page 66: Using Web Root To Configure The Snapscale As A Simple Web Server
Using Web Root to Configure the SnapScale as a Simple Web Server When you enable the Web Root feature from the Web page, you can configure your SnapScale cluster to open automatically to an HTML page of your choice when a user enters the following in the browser field:...
Page 67 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Web Access NOTE: SnapScale supports direct read-only web access to files. It is not intended for use as an all-purpose Web Server, as it does not support PERL or Java scripting, animations, streaming video, or anything that would require a special application or service running on the SnapScale cluster.
Page 68 Accessing the Web Management Interface when Web Root is Enabled By default, when you connect to a SnapScale cluster with Web Root enabled, the browser loads the user-defined HTML page or present a directory listing of the Web Root. To access...
Page 69: Isns Configuration
SnapScale/RAINcloudOS 4.0 Administrator’s Guide iSNS Configuration iSNS Configuration Microsoft iSNS Server can be used for the discovery of SnapScale iSCSI targets on an iSCSI network. To configure the iSNS settings: 1. If not already installed, install the iSNS service on a Windows server.
Page 70: Chapter 5 - Storage Options
Storage Options Chapter 5 From the storage default page ( Storage Settings ), you can access and configure the storage options for your SnapScale cluster including nodes and drives. Topics in Storage Options: • Peer Sets • Volumes • Quotas •...
Page 71: Peer Sets And Recovery
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Peer Sets SnapScale aggregates all the storage on the peer sets in the cluster to form a unified data storage space for network client access. Data access is transparent between the cluster storage space and the peer sets so that users never directly access the peer sets.
Page 72 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Peer Sets If a peer set is missing one drive but at least one other drive is available, the peer set continues to be accessible but is in degraded mode. This table shows the different peer set...
Page 73: Peer Set Utilization
New drives are initially configured automatically as spare drives. Subsequently, if enough spare drives exist on different nodes to construct new peer sets but still satisfy the spare count setting, the SnapScale automatically creates new peer sets and expand cluster storage space.
Page 74: Peer Sets Page
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Peer Sets Peer Sets Page The following table covers the items listed on this page: Option Description # Peer Sets Displays the total number (#) of peer sets configured and (above table, left) shown in the table.
Page 75: Spare Disks Page
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Peer Sets Option Description Member 3 (if shown) Shows the node, drive/slot number, and the size of the third member of this peer set when the Data Replication Count is set to “3x.” Click to view the Disks page and identify the specific disk drive's location.
Page 76: Spare Distributor
Option Description Spare Disks Setting Displays the quantity set for spare drives. Clicking this link takes you to the SnapScale Properties page to edit the (above table, right) setting. NOTE: This setting may not equal the number of spare drives...
Page 77 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Peer Sets 1. Go to Storage > Peer Sets > Spare Distributor . If responding to an alert, you can click the Spare Distributor link in the alert to go directly to the page. 2. Click the Start Spare Distributor button to start the process.
Page 78: Data Balancer
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Peer Sets Data Balancer Data Balancer (formerly Capacity Balancer) redistributes peer set utilization by moving data from more to less heavily used peer sets. Maintaining a balance of peer set capacity improves performance by assuring a balance of read and write traffic across all peer sets.
Page 79 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Peer Sets 2. Review the default File Size Limit and change it, if needed. The File Size Limit represents the maximum size of a file the Data Balancer will attempt to move to rebalance peer set consumption. The default is 2GB.
Page 80: Volumes
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Volumes Volumes Use the Volumes page ( Storage > Volumes ) to manage the volumes that have been created. From this page, you can: • Create a new volume. • Edit or delete the volume (by clicking the name to access the Properties page).
Page 81: Creating Volumes
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Volumes Creating Volumes By default, the full cluster storage space is accessible as one large storage space. However, the storage space can be divided into multiple volumes in order to thinly provision space for specific projects, departments, or roles. Volumes can be constrained to use no more than a certain amount of space available in the clustered storage space.
Page 82 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Volumes 3. Click the Create Volume button again. A confirmation page is shown: 4. At the confirmation page, click Create Share to create a share pointing to this volume (takes you to the Shares page). Click to display options shown below NOTE: The snapshot options at the bottom are only shown if snapshot space has been reserved.
Page 83: Edit Volume Properties
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Volumes Edit Volume Properties By clicking a volume’s name on the main page, details of that particular volume are shown on the Volume Properties page. From this secondary page, you can: • Change the volume name.
Page 84: Quotas
NIS group regardless of whether a quota is applied to them, allowing for precise tracking of usage patterns. You can set individual quotas for any NIS, Windows domain, or local user known to the SnapScale. Group quotas are available only for NIS groups.
Page 85: Default Quotas
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Quotas In calculating usage, the SnapScale looks at all the files on the server that are owned by a particular user and adds up the file sizes. Every file is owned by the user who created the file and by the primary group to which the user belongs.
Page 86: Quotas For Volume Page
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Quotas Quotas for Volume Page From the Quotas page, you can create, view, or modify user and group quotas for a volume by clicking the volume’s name in the Volume column on the far left. A Quotas for Volume page...
Page 87: Add Quota Wizard
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Quotas • Type – Choose Space or File . • Sort by – Select Name , Limit , Used , or Used (%) . • View – Choose one of these view options: • Only assigned quotas •...
Page 88 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Quotas 2. Click Add Quota to launch the search wizard. 3. To search for a user or NIS group, select the local or domain option from the Search drop-down list, enter the search string (or select Find All), and click Search .
Page 89: Editing Or Removing Quotas
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Quotas 4. From the search results, select the appropriate user or NIS group, and click Next to show the configuration page for that user or group. 5. Select or enter the desired space or file quota amounts, and click OK .
Page 90: Snapshots
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Snapshots 3. To edit or remove the quota, from the search results select the appropriate user or NIS group from the left column to open the Quotas settings page. 4. Select or enter the quota desired: •...
Page 91: Snapshots Overview
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Snapshots Navigate to Storage > Snapshots in the browser-based Web Management Interface to create or schedule snapshots: Snapshots Overview When working with snapshots, consider the following caveats: • It is recommended that snapshots be taken when the system is idle or under low data traffic to minimize conflicts.
Page 92 Edit a Snapshot Schedule Click the Snapshot Schedules button, and then click the snapshot name. You can modify all snapshot parameters. Adjusting Snapshot Space Specify the percentage of your SnapScale storage space to reserve for Size snapshots. NOTE: The storage space reserved for snapshots can be reduced, but it can never be increased once it is created.
Page 93 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Snapshots Action Procedure Click the snapshot’s name in the Snapshot column to open the Edit and Delete Snapshot Properties page. You can edit the snapshot’s name and duration, or delete the snapshot. Clicking the Refresh button updates the page. This is helpful when Refresh the Page waiting for a snapshot to complete.
Page 94: Adjusting Snapshot Space
Snapshots table. Adjusting Snapshot Space NOTE: Once the SnapScale cluster is created, the storage space reserved for snapshots can only be decreased. It can never be increased. If you have reserved storage space for snapshots during the setup of your cluster, you can use the Snapshot Space button to access the page where you can decrease the size of the space.
Page 95: Accessing Snapshots
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Snapshots 3. Click OK to complete the process. Accessing Snapshots After snapshots are created, they can be accessed via a snapshot share. Just as a share provides access to a portion of a live volume, a snapshot share provides access to the same portion of the filesystem on all current snapshots of the volume.
Page 96: Edit Snapshot Properties
SCSI drive. This storage virtualization frees the administrator from the physical limitations of direct-attached storage media and allows capacity to be expanded easily as needed. Unlike standard volumes, SnapScale cluster iSCSI disks can be formatted by the iSCSI client to accommodate different application requirements.
Page 97 Back up an iSCSI Disk from the Client, not the SnapScale An iSCSI disk is not accessible from a share and thus cannot be backed up from the SnapScale cluster. The disk can, however, be backed up from the client machine from which the iSCSI disk is managed.
Page 98: Create Iscsi Disks
The format of IQNs for VDS-based iSCSI disks on the SnapScale cluster is: iqn.1997-10.com.snapscale:[clustername]:[blockdevice] and the format for IQNs for snapshots of iSCSI disks on the SnapScale cluster is: iqn.1997-10.com.snapscale:[clustername]:[blockdevice]-snap[n] where, in both cases, is the name of the SnapScale cluster,...
Page 99 SnapScale/RAINcloudOS 4.0 Administrator’s Guide iSCSI Disks The creation process involves first defining iSCSI parameters, then setting up security, and finally confirming your settings. 1. Navigate to Storage > iSCSI and click Create iSCSI Disk. 2. Enter the iSCSI settings for the disk name and size (16GB minimum).
Page 100: Edit Iscsi Disk Properties
SnapScale/RAINcloudOS 4.0 Administrator’s Guide iSCSI Disks Label Description iSCSI Disk The name of the iSCSI disk. Status Current condition of the iSCSI disk: • OK – The iSCSI disk is online and accessible. • Stopped – The iSCSI disk is currently stopped.
Page 101: Delete An Iscsi Disk
VSS snapshot will not be created and an error will be reported by the SnapScale cluster VSS hardware provider to the Windows event log. When creating iSCSI disks for later VSS snapshot use, be sure to leave at least 10% of the size of the iSCSI target free on the cluster.
Page 102 When the backup job is run, the snapshot of the iSCSI disk is automatically created and hosted by the SnapScale cluster as a virtual iSCSI disk (named after the main iSCSI disk with snap[n] appended), and the backup application performs the backup using the snapshot iSCSI disk.
Page 103 Disks Creating and Managing iSCSI LUNs Using VDS 1. Create the volume for the iSCSI disk on the SnapScale cluster using the Web Management Interface ( Storage > Volumes ). The volume must be created on the SnapScale cluster before the iSCSI disk can be created using a VDS application such as Microsoft’s Storage Manager for SANs.
Page 104: Nodes
• Edit or delete the node (by clicking the node name to access the Node Properties page). • Identify physical nodes via flashing LEDs. Nodes Overview Some important points about SnapScale nodes: • Users can access the cluster storage over any of the configured network protocols by connecting to any of the nodes.
Page 105: Edit Node Properties
• Flash the node drive LEDs to help identify the node. • Change the node description. • View the drives in the node. • Remove the node from the SnapScale cluster. Flash the Node LEDs Click the light-blue box ( ) under the node name to start the LEDs flashing for up to five minutes.
Page 106: Adding Nodes
When done, click Close to return to the Node Properties page. Adding Nodes A SnapScale cluster can also be expanded by adding more nodes. Expansion kits are available that consist of either two or three additional nodes and all the necessary cables.
Page 107 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Nodes 2. Click Next to display node choices (Wizard Step 1): 3. At Wizard Step 1, check the boxes for the nodes you want to add to the cluster, and click Next . NOTE: By default, all eligible nodes are pre-selected. It is recommended to accept all the nodes to ensure the optimum configuration.
Page 108 IP addresses must be added to the pool. You can also enter a starting address in the Populate field based on the static IP addresses (in the list on the right) currently being used by your SnapScale cluster, and then click the Populate Static IP Addresses button.
Page 109 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Nodes 5. At Wizard Step 3, verify the data and click Add Nodes to SnapScale . 6. At the confirmation page, click Add Nodes to SnapScale again. The new nodes are added to the cluster and the peer sets are built. This process takes several minutes.
Page 110: Removing Nodes
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Nodes Removing Nodes To remove a node from a SnapScale cluster, go to the Node Properties page and click the button. At the confirmation page, click the Remove Node Remove Node from SnapScale button again. from SnapScale IMPORTANT: Removing a node may result in one or more peer sets becoming degraded.
Page 111: Node Identification
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Nodes Node Identification The Node Identification page (accessed by the button on the main Nodes page) provides a convenient place to check the nodes and optionally change their descriptions for easier identification in the Web Management Interface.
Page 112: Disks
Should a drive fail (solid red LED), it can be replaced (hot-swapped) without shutting down the SnapScale node. If a spare is available on a node that doesn’t already have an active member of the failed drive's peer set, the spare automatically replaces the failed drive and the new drive being installed automatically becomes a spare.
Page 113: Adding Drives
If there are no errors, after the new drive is incorporated, any alert LEDs are turned off and system statuses are updated. Adding Drives If new peer sets are created when adding new drives to a node in a SnapScale CAUTION: cluster, all existing snapshots will be deleted.
Page 114 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Disks Drive Installation NOTE: Do not remove the disk drives from their carriers. Doing so voids the drive warranty. Unless adding drives to an Uninitialized nodes, the cluster must be up and fully operational. Install the drives into the available slots: 1.
Page 115 Disks Peer Set/Hot Spare Incorporation When newly installed drives are detected, SnapScale first auto-incorporates drives to fix any failed peer set and fulfill any reserved spare count. The Web Management Interface then displays an alert banner about the new drives and the New Disks Detected page is activated.
Page 117: Chapter 6 - Security Options
Authentication validates a user’s identity by requiring the user to provide a registered login name (User ID) and corresponding password. SnapScale clusters have predefined local users and groups that allow administrative (admin) and guest user access to the cluster via all protocols.
Page 118: Guidelines For Local Authentication
Web Management Interface or SSM. A local user or group is one that is defined locally on a SnapScale cluster using the Web Management Interface. The default users and groups listed below cannot be modified or deleted.
Page 119: User And Group Id Assignments
User and Group ID Assignments A SnapScale cluster uses the POSIX standard to assign UIDs or GIDs, in which each user and group must have a unique ID. This requirement applies to all users and groups on the cluster, including NIS, Windows domain, and local users plus NIS groups.
Page 120: Windows Active Directory Security Guide
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Security Guides Windows Active Directory Security Guide The Windows Active Directory Security Guide wizard guides you through the setup of Windows Active Directory on your cluster. NOTE: You cannot join an Active Directory domain if NTP is enabled. If you see such a message, click the NTP link to change your settings.
Page 121: Entire Volume Security Guide
Shares SnapScale provides full integration with existing Windows Active Directory domain or UNIX NIS user and group databases. At the share level, administrators can assign read-write or read-only share access to individual Windows (and local) users and groups. Administrators can also edit the NFS exports file to control how shares are exported to NFS client machines.
Page 122: Share Security Overview
Shares Share Security Overview SnapScale supports file access in Windows and UNIX networks. New shares are created by default with full read-write access to all users, subject to the filesystem permissions on the share target directory. The first step to securing a cluster is to specify access at the individual share level.
Page 123 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Shares By clicking the Advanced Share Properties link, additional options are displayed. Use these options to hide the share from network browsing, select the protocols supported, and create a snapshot share associated with this share. Creating a Share Creating a share includes selecting the volume, security model, and directory path for the share and then defining share attributes and network access protocols.
Page 124: Edit Share Properties
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Shares 8. Click Create Share to complete the process. Edit Share Properties NOTE: You cannot change the volume (or path) of a share once it is created. If you need to change the volume, you must delete the share and create a new one on the other volume.
Page 125: Delete Shares
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Shares Option Description Hide this share Select this option if you want the share to be hidden from network browsing using SMB and HTTP/HTTPS (but not NFS) protocols. Protocols Select the access protocols for the share: Windows (SMB), Linux/UNIX (NFS), or Web (HTTP/HTTPS).
Page 126 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Shares Share Access Behaviors Administrators tasked with devising security policies for SnapScale clusters will find the following share access behaviors informative: • Share access defaults to full control – The default permission granted to users and groups when they are granted access to the share is full control.
Page 127 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Shares • Interaction between share-level and file-level access permissions – When both share-level and file-level permissions apply to a user action, the more restrictive of the two applies. Consider the following examples: Example A: More restrictive file-level access is given precedence over more permissive share-level access.
Page 128 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Shares The default permission granted to users and groups when they are granted access to the share is Full Access . You may restrict selected users and groups to Read-only Access . Share-Level Access Permissions Full Users can read, write, modify, create, or delete files and folders within the share.
Page 129 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Shares 3. To remove share access permissions for a user or group: a. Select one or more users or groups in the left box. b. Click Remove . 4. To change access permissions for a user or group, select one or more users or groups in the left box, then select either Full Access or Read Only from the drop-down list, and click the Change Access button.
Page 130 NOTE: The syntax used in this file is equivalent to standard Linux exports file syntax. If the cluster detects any errors in syntax, a warning message appears. You can choose to correct or ignore the error warning. The Exports File Default Options. The SnapScale default setting provides read-write access to all NFS clients. *(rw,insecure,async,root_squash,no_all_squash)
Page 131 Using the Add Host Option. Follow these steps: 1. Select one of the following options: • SnapScale Default Options – Inserts the default options as described above • Read Only – Inserts the read only option only • Both – Inserts default options, but substitutes read only for read/write 2.
Page 132: Local Users
The Local Users page provides all the options to manage local users. Local users are users that are known only to the cluster being accessed. Each SnapScale cluster comes with two predefined users: admin and guest. The admin user has full Administrator rights. Go to to view settings or make changes.
Page 133: Edit User Properties
Web Management Interface. While the cluster, all the nodes, and all the data are fully accessible during this synchronization process, you should wait for the message to disappear before making further changes to your SnapScale. 10400455-001 Dec 2013 ©Overland Storage, Inc.
Page 134 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Local Users To Edit Local User Properties 1. On the Local Users page, highlight the user you want to edit and click Properties . 2. On the Local User Properties page that opens, enter or change any of the...
Page 135: Local User Password Policies
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Local Users Option Description Disable User Login Check this box to disable the user login. The user’s information will remain in the system, but login rights are denied. The user login can be re-enabled by clearing the box.
Page 136: Assign User To Group
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Local Users 3. Enter the following information: Option Description Character Requirements Select the alpha/numeric/special character requirements for the password from the drop-down list. Minimum Number of Check this box to enable the policy, then enter the minimum number Characters of characters required for the password.
Page 137: Delete Local User
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Local Users 2. Click Groups . The group settings for the selected user are shown. 3. To add the selected user to a group, select the group from the right-side list and click <- Add 4. To delete the selected user from a group, select the group from the left-side list and click Remove ->...
Page 138: Local Groups
The Local Groups page ( Security > Local Groups ) provides all the options to manage local groups. Local groups are groups of local users that are known only to the cluster being accessed. Each SnapScale cluster comes with one predefined group: admingrp. Create New Group Use the Create button to create a new group on this cluster.
Page 139: Edit Group Properties
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Local Groups Option Description Group ID (GID) Displays the user identification number assigned to this user. Alter as necessary. For information on available UID ranges, see User and Group ID Assignments on page 6-3. 3. Click Create Group when finished.
Page 140: Specify Users In Group
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Local Groups To Edit Local Group Properties 1. On the Local Groups page, select the group you want to edit and click Properties . 2. On the Local Groups Properties page that opens, you can change the GID. For...
Page 141: Security Models
Security Models Security Models There are two file-level security models that can be used by a SnapScale cluster: Windows/Mixed and UNIX. The security model can only be configured on the volumes. The security model determines the rules regarding which security personality that is present on files and folders created by the various protocols and clients, and whether the personality of files and folders can be changed by changing permissions.
Page 142: Add Mapping
SnapScale/RAINcloudOS 4.0 Administrator’s Guide ID Mapping Select a local or NIS user or group from the displayed list on the default page. You can then use Add Mapping to map the user’s UID or group’s GID to that of a Windows domain user or group.
Page 143 SnapScale/RAINcloudOS 4.0 Administrator’s Guide ID Mapping a. At the bottom of the list, using the Search drop-down list, select the local or NIS user or group list to be searched. b. Select Find and enter the search string (or select Find All ).
Page 144: Click Ok To Save Changes (Or Cancel To Reset)
SnapScale/RAINcloudOS 4.0 Administrator’s Guide ID Mapping • On the rare occasion you need to search for a Windows domain that's not listed (“remote domain”), select a Windows domain from the Search drop-down list through which to search, then enter in the Find box the name of the remote domain,...
Page 145: Change Mapping
SnapScale/RAINcloudOS 4.0 Administrator’s Guide ID Mapping 7. When done with all your mappings, click OK to activate them. 8. At the confirmation page, click Save Changes . 9. At the filesystem update option page, choose either Update Filesystem or Do Not...
Page 146 SnapScale/RAINcloudOS 4.0 Administrator’s Guide ID Mapping 2. Select a mapped user/group to be changed, and click Change Mapping . 3. At the Change Mapping page, to find the user/group you want to map to, select the Windows domain user or group list, the search scope, enter a search string if needed, and click Search .
Page 147: Auto Mapping
SnapScale/RAINcloudOS 4.0 Administrator’s Guide ID Mapping 4. From the search results, select the Windows domain user/group to which you want to re-map the local or NIS user, and click Change Mapping . 5. Repeat Steps 1–4 until all changes are made.
Page 148 SnapScale/RAINcloudOS 4.0 Administrator’s Guide ID Mapping 2. At the Auto Mapping confirmation page, click View Auto Mappings to continue. 3. At the summary page, verify the mappings and remove ( Remove Auto Mapping ) any users or groups you do not want to map.
Page 149: Remove Mappings
SnapScale/RAINcloudOS 4.0 Administrator’s Guide ID Mapping IMPORTANT: Updating may take some time, depending upon how many files and folders are on your system. If you elect not to do this operation, any files and folders owned by (or having permissions by) any of the Windows users and groups you have just updated will remain unchanged and cannot be updated at a later time.
Page 150 SnapScale/RAINcloudOS 4.0 Administrator’s Guide ID Mapping 3. At the confirmation page, verify the users/groups listed and click Remove Mappings . The selected mappings are removed and the default page is displayed with the users/groups that were unmapped in purple with a plus (+) in front of their name.
Page 151 SnapScale/RAINcloudOS 4.0 Administrator’s Guide ID Mapping 2. At the confirmation page, click Remove Mappings . All the mappings are removed and the default page is displayed with the users/groups that were unmapped in purple with a plus (+) in front of the names.
Page 152: Remove Missing Id Mappings
SnapScale/RAINcloudOS 4.0 Administrator’s Guide ID Mapping Remove Missing ID Mappings If the cluster has mappings for users or groups that no longer exist, the following warning message may be displayed at the top of the main ID Mappings page: 1. Click the Click here link in the warning message to display the Remove Missing page.
Page 153: Filesystem Updates
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Home Directories Filesystem Updates After making any changes to ID mappings, you are presented with a filesystem update option page, where you can choose either Update Filesystem or Do Not Update Filesystem options. If you choose Update Filesystem , UID and GID ownership on files and SIDs in ACLs are updated to reflect the ID mapping operation.
Page 154: Configure Home Directories
SnapScale as the user’s home directory. If ID Mapping is enabled, domain users and local users mapped to the same user are directed to the domain user’s home directory.
Page 155 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Home Directories NOTE: Do not put Home Directories on a volume that might be deleted. If you delete the volume, you will also delete the Home Directories. 10400455-001 Dec 2013 ©Overland Storage, Inc. 6-39 ...
Page 156: Chapter 7 - System Monitoring
System Monitoring Chapter 7 This chapter addresses the options for monitoring the SnapScale cluster. Here you can view the system status and other activities. Topics in System Monitoring: • System Status • Activity submenus: • Active Users • Open Files •...
Page 157: System Status
Use the System Status page ( Monitor > System Status ) to assess the hardware status and key information of the cluster member nodes. SnapScale Status The following status fields are displayed for each node that is part of the SnapScale cluster. Any critical messages are displayed in a font.
Page 158: Activity
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Activity Field Description Ambient Temp. The temperature of the space inside the chassis. CPU Temp. Current CPU temperature. Power Supply The status of power supply modules Fan Status The status of fan modules. Activity The Activity tab provides access to a submenu of options and features for monitoring activity on the cluster.
Page 159: Open Files
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Activity Open Files Use this option to view read-only details on the open files on a specific node. Use the drop-down list on the upper right to choose a different node to view. Close the page to return to the Activity tab.
Page 160 (the icon turns green). Click again to return to the individual readings. Cluster Total Usage Click icon to show usage for the entire SnapScale cluster (combining all the node usage amounts). The icon turns green and a new row for the cluster is shown at the top of the table.
Page 161 26 (averaged) samples of I/O data for the selected time period. Position the cursor over a usage graph to view usage details at a specific time in that range. Click the icon above the table to add the network activity for the entire SnapScale cluster. 10400455-001 Dec 2013 ©Overland Storage, Inc.
Page 162: Event Log
Edit the following fields as appropriate, then click Refresh . Option Description View Log Select to view either the SnapScale cluster-wide or node-specific logs. The SnapScale option shows general cluster-related log messages while the node-specific options show log messages specific to the selected node.
Page 163: Protocol Manager
Protocol Manager Protocol Manager manages networking protocols and IP address assignment across the entire SnapScale. If a node fails or is removed from the SnapScale, Protocol Manager handles automatic IP address reassignment to maintain client access to data. The following table addresses the possible status:...
Page 164: Snapscale Settings
The SnapScale Settings page displays a list of settings that have been applied to the nodes in the cluster and the status of each setting. When you make changes to your SnapScale via the Web Management Interface, the settings are applied to the Management node first to determine success or failure of the configuration, then the settings are applied to the other nodes in the background.
Page 165 SnapScale/RAINcloudOS 4.0 Administrator’s Guide SnapScale Settings Click the upper right text that says View is: Compressed to switch to the expanded view: Use the scroll bar on the right side to view all the data. In expanded mode, detailed information on each node is available: •...
Page 166: Tape
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Tape Tape Use the Tape Monitor page ( Monitor > Tape ) to view read-only details on the SCSI and USB tape devices attached to each node. Use the drop-down list on the upper right to select whether to view all the nodes or individual nodes.
Page 167: Chapter 8 - Maintenance
Maintenance Chapter 8 Clicking the Maintenance tab on the Web Management Interface displays options used to maintain this SnapScale cluster. There is also a Tools submenu of special, related options. Topics in Web Management Interface • Shutdown and Restart •...
Page 168: Shutdown And Restart
To prevent possible data corruption or loss, it is NOT recommended to directly power down any nodes that are part of a SnapScale cluster. When powering down a cluster, always use the Shutdown button that can be found under Maintenance > Shutdown/Restart in the Web Management Interface.
Page 169 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Data Import Windows/SMB Page: NFS Page: If an error is encountered during the import (for example, a file or folder is locked and cannot be imported), the utility records the error in a log, and continues the operation. When the import is completed, the administrator can view the log of import errors.
Page 170: Setting Up A Data Import Job
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Data Import • Import type: copy or move data • Include subfolders • Overwrite existing files • Preserve the original permissions settings NOTE: If you elect to preserve original permissions settings, review Preserving Permissions on page 8-6.
Page 171 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Data Import Option Description Path Enter the path to the file or folder you want to import. If you are importing the entire share, you can leave the Path field blank. NOTE: Wildcards are not supported when specifying the path to import.
Page 172: Stopping An Import Job
If you are importing from a UNIX server to a UNIX personality directory, UNIX permissions for UIDs/GIDs are copied exactly from source to target; thus, identities of the users and groups are best retained if the SnapScale cluster belongs to the same NIS domain as the UNIX server.
Page 173: Os Update
UNIX permissions. Importing from a SnapServer or SnapScale Cluster When importing from a SnapServer or another SnapScale cluster, it is recommended that you maintain the same security model on the target that you have on the source.
Page 174: Update The Raincloudos Software
SnapScale/RAINcloudOS 4.0 Administrator’s Guide OS Update To view the last OS update for each of the nodes, click the link under the buttons to show (or hide) the update table: Update the RAINcloudOS Software 1. Click the Check for Updates button. If an update is available, follow the instructions on the page to download it.
Page 175: Configuring Update Notification
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Support Configuring Update Notification 1. Click the Update Notification button to display the options: 2. Check the Enable Automatic Update Notification option box. 3. If your environment requires using a proxy server for external web-based communication, check the Use a proxy server for HTTP communication check box and complete the Proxy Host and Proxy Port fields.
Page 176: Phone Home Support
Phone Home Support Once email notification has been configured, Phone Home Support becomes available for registered SnapScale clusters. Phone Home Support optionally uploads and emails system logs and files that contain information useful for troubleshooting purposes to Overland Storage technical support. You can use the Support page under Maintenance to open a new case with technical support;...
Page 177 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Support NOTE: A Debug Logging option is located on this page but should only be changed at the direction of Overland Support. Click the link to change it. Advanced Help If you have an open case and have entered the Case Number , clicking the Advanced button opens additional options for the phone home feature.
Page 178: Registering Your Cluster
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Support • Upload information about specific nodes Select one or more nodes to upload logs from them. Use the Select All and Select options on the right as needed. None Registering Your Cluster When you first start a cluster, a Registration Reminder page appears. Registering your cluster activates your warranty and allows you to create and track service requests.
Page 179: Tools
4. Email the downloaded registration file to warranty@overlandstorage.com. Use the subject line SnapScale Registration Request for the email. The same page is also used to update your registration information. For example, when you add new nodes to your cluster, they need to be added to the cluster registration so that they are also covered.
Page 180: Email Notification
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Tools Email Notification To configure the cluster to send email alerts in response to system events or activate Overland support, navigate to Maintenance > Tools > Email Notification . To set up email alerts, you need: (1) the SMTP server’s IP address; and (2) the email address of each recipient who is to receive the alert.
Page 181: Host File Editor
Node Number: nnnnnnn This is a test message. Host File Editor Use this page to identify external hosts in the SnapScale cluster’s hosts file. This page allows you to supply a hostname-to-IP address mapping that persists across system reboots. 10400455-001 Dec 2013 ©Overland Storage, Inc.
Page 182: Delete Snapscale Cluster
Uninitialized nodes. • Shut down all nodes – After deleting the SnapScale cluster, the nodes shut down. The next time the nodes are powered on, they automatically perform a fresh install and then reboot as Uninitialized nodes.
Page 183 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Tools 2. Click Delete SnapScale. 3. At the confirmation page, enter your Admin password and click Delete SnapScale again to start the process. During the cluster deletion, an information page is shown (such as this one for the Restart option).
Page 185: Chapter 9 - Misc. Options
Admin Home page (titled Administration ) is displayed. Once logged in, you can switch back and forth between the Web Home page and the Admin Home page using the Home ( ) icon. 10400455-001 Dec 2013 ©Overland Storage, Inc. ...
Page 186: Web Home
Home Pages – Web/Admin Web Home The Web Home page shows a list of all the shares on the SnapScale cluster and has three links to key functions. Clicking a share name/link displays the files and folders within the share. For users with admin rights, a key icon ( ) appears next to each file/folder in the share.
Page 187: Administration
Home icon on any other page in the Web Management Interface. It provides a high-level view of the SnapScale status, links to key items such as peer sets and nodes, and a link to find out what’s new in RAINcloudOS. The tabs at the top provide access to the various functions and features of the RAINcloudOS.
Page 188 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Home Pages – Web/Admin Refresh Button This table details the information on the Admin Home page: Option Description SnapScale Name Shows the name used to identify the cluster. The default name is “Scalennnnnnn” (where nnnnnnn is the appliance number of the node used to create the cluster).
Page 189: Snapextensions
SnapScale/RAINcloudOS 4.0 Administrator’s Guide SnapExtensions Option Description UPS Status Displays UPS status for all nodes. This option is only displayed if UPS support is enabled. Total Storage Usage Displays a bar chart, percentage, and actual amount of cluster storage space used compared to total storage space available (used/total space).
Page 190: Snap Finder
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Snap Finder Snap Finder ) is a powerful tool that lists all the SnapScale clusters, Uninitialized nodes, Snap Finder and SnapServer appliances on your network (and on a remote network segment if so configured), and shows the current status of each. Click the unit name (if you have name resolution) or IP address of a cluster, node, or server to access it through the Web Management Interface.
Page 191: Edit Snap Finder Properties
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Snap Finder Identification Description Total Cap The total capacity on the cluster or SnapServer. This field is not applicable to an Uninitialized node. To enable remote discovery of clusters, nodes, or servers on a different subnet or to display a warning icon for SnapServers or Uninitialized nodes with an enabled Ethernet port that has no link, click the Properties button to open the Snap Finder Properties page.
Page 192: Change Password
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Change Password Change Password To enhance the security of your SnapScale cluster, it is recommended that users change their passwords regularly. This is done using the Change Password page. Changing Your Password 1. On the Home page, click the Change Password link ( 2.
Page 193: Management Interface Settings
SnapScale/RAINcloudOS 4.0 Administrator’s Guide Management Interface Settings Management Interface Settings The Web Management Interface default background is light blue with the stylized “O” symbol. This can be changed to a solid blue background on the Management Interface page by clicking the Site Map icon (...
Page 194: Appendix A - Backup Solutions
Snap EDR provides server-to-server synchronization by moving, copying, or replicating the contents of a share from one cluster or server to another share on one or more different clusters or servers. It comes preinstalled on SnapScale clusters and activates a 45-day free trial if configured as a Management Console.
Page 195: Snap Edr Usage
SnapServer) or cluster management name of the Management Console (for a SnapScale). The cluster must be able to resolve the name to the correct IP address. 5. Once the cluster is configured, select the following options from the page that appears:...
Page 196: Scheduling Jobs In Snap Edr
Backup via Agent or Media Server A SnapScale cluster can be backed up using a third-party Linux agent or media server installed on one cluster node. A tape drive or library can be attached to the node to provide local backup of the cluster.
Page 197: Appendix B - Security And Access
Windows/Mixed. It can be changed to a Unix security model if necessary. RAINcloudOS on the SnapScale supports share-level as well as file- and directory-level permissions for all local and Windows domain users and groups (see Windows ACLs page B-4).
Page 198: Security Model Management
Special Share Options The basic setup and configuration of shares on a SnapScale are handled on Security > (see Chapter Security Options).
Page 199: Where To Place Shares
A snapshot share is a read-only copy of a live share that provides users with direct access to versions of their files archived locally on the SnapScale via a snapshot. Users who wish to view or recover an earlier version of a file can retrieve it on demand without administrator intervention.
Page 200: File-Level Security
Windows server. Clients can use the standard Windows 2000, 2003, XP, Vista, or Windows 7 interface to set directory and file permissions for local and Windows domain users and groups on the SnapScale. 10400455-001 Dec 2013 ©Overland Storage, Inc.
Page 201 Procedure to set file and directory access permissions and inheritance in Windows: 1. Using a Windows 2003, XP, Vista, 2008, or 7 client, map a drive to the SnapScale, logging in as a user with change permissions for the target file or directory.
Page 202: Appendix C - Raincloudos Ports
TCP & UDP Network > Windows/SMB snmp Simple Network Management Protocol (SNMP) TCP & UDP Network > Windows/SMB snmptrap Traps for SNMP TCP & UDP Network > Windows/SMB ldap Lightweight Directory Access Protocol (LDAP) 10400455-001 Dec 2013 ©Overland Storage, Inc. ...
Page 203 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Port # Layer ROS Feature Name Comment TCP & UDP • Web Management https Secure Hypertext Transfer Protocol (HTTP). Interface • SnapServer Manager • SnapExtensions > Snap TCP & UDP Network > Windows/SMB microsoft-ds Server Message Block (SMB) over TCP/IP Network >...
Page 204 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Port # Layer ROS Feature Name Comment 1024 - TCP & UDP Network > NFS Dynamically allocated in runtime for user 65535 connections Network > FTP FTP (Passive) 10400455-001 Dec 2013 ©Overland Storage, Inc. ...
Page 205: Appendix D - Troubleshooting
SnapScale X2 Node LEDs The SnapScale X2 has one network LED (Ethernet) and one system status LED on the Power Panel located on the right flange, along with a Power button and a Reset button. Each...
Page 206 This is the round LED located just below the Status LED on the right flange. Device State LED State Powered OFF green Link Up (SnapScale Powered ON) Solid Link Down Power Supply Status LED This is the LED located just above and to the right of the socket.
Page 207: Snapscale X4 Node Leds
Network Reset NOTE: The reset button is only operational for Uninitialized SnapScale nodes (not part of a cluster). 10400455-001 Dec 2013 ©Overland Storage, Inc.
Page 208 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Network Reset If an Uninitialized SnapScale node has been configured with incorrect network settings, the settings can be reset to the default values via the reset button. The Reset button is accessed via a small hole on the side flanges: •...
Page 209 Master Glossary & Acronym List NOTE: This is a general Overland Storage glossary and acronym list. Not all items may be found in this document or be used by this product. 1000BASE-T 1000BASE-T (also known as IEEE 802.3ab) is a standard for gigabit Ethernet over copper wiring.
Page 210 SnapScale/RAINcloudOS 4.0 Administrator’s Guide AllUsers Group A collection of all users. The SnapServer or SnapScale cluster automatically maintains the AllUsers group. Short for Advanced Technology Attachment. A standard interface for connecting storage devices to a PC. Authentication The validation of a user’s identity by requiring the user to provide a registered login name and corresponding password.
Page 211 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Cat 6 Cable Short for Category 6, it is network cabling that consists of four twisted pairs of copper wire terminated by 8P8C modular connectors made to higher standards that help reduce noise caused by crosstalk and system noise. The ANSI/TIA-568-B.2-1 specification states the cable may be made with 22 to 24 AWG gauge wire, so long as the cable meets the specified testing standards.
Page 212 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Domain A set of network resources in Windows 2000/2003/2008, such as users and groups of users. A domain may also include multiple servers on the network. To gain access to these network resources, the user logs into the domain.
Page 213 Short for File Transfer Protocol. A standard Internet protocol that provides a way to exchange files between computers on the Internet. By default, a SnapServer or SnapScale cluster is set up to be an FTP server.
Page 214 SnapScale/RAINcloudOS 4.0 Administrator’s Guide HTTP Short for Hypertext Transfer Protocol. An application protocol for transferring files (text, graphic images, sound, video, and other multimedia files) over TCP/IP on the World Wide Web. HTTPS Short for Hypertext Transfer Protocol Secure. The HTTP protocol using a Secure Sockets Layer (SSL).
Page 215 Local Group/Local User A group/user defined locally on a SnapServer or SnapScale cluster using the Web Management Interface. The local user is defined by the server or cluster administrator.
Page 216 The user's system needs to have an NFS client and the other computer needs the NFS server. The SnapServer and SnapScale are configured as an NFS server by default. Short for Network Interface Card. A board that provides network communication capabilities to and from a computer.
Page 217 Short for Network Information Service. A network naming and administration system for smaller networks that was developed by Sun Microsystems. NIS+ is a later version that provides additional security and other facilities. The SnapServer and SnapScale accept NIS users and groups.
Page 218 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Quota A limit on the amount of storage space on a volume that a specific user or NIS group can consume. RAID Short for Redundant Array of Independent Disks. A data storage scheme where multiple hard drives are combined to form a single logical unit which is highly reliable and gives good performance.
Page 219 SnapScale/RAINcloudOS 4.0 Administrator’s Guide In principle, a RAID 5 pool could have a very large number of disks. However, the more disks there are, the greater the chance of a double disk failure. If a single disk fails, the data is no longer protected until the disk has been replaced and the pool has been rebuilt by reconstructing all the data from the failed disk and writing it to the new disk.
Page 220 Server Number A numeric derived from the MAC address of the primary Ethernet port that is used to uniquely identify a SnapServer or SnapScale node. Session When an initiator wants to establish a connection with a target, it establishes what is known as an iSCSI session.
Page 221 SnapScale/RAINcloudOS 4.0 Administrator’s Guide SnapExtension An application that extends the functionality of a SnapServer or SnapScale cluster. SnapServer Manager The SnapServer Manager (SSM) is a Java-based utility for discovering and monitoring SnapServers and SnapScale clusters. Snapshot A method for producing a point-in-time image of a logical drive that results in a consistent, stable, point-in-time image of a volume (filesystem) used for backup purposes.
Page 222 SnapScale/RAINcloudOS 4.0 Administrator’s Guide Storage Area Network See SAN. Subnet Mask A portion of a network that shares a common address component. On TCP/IP networks, subnets are all devices with IP addresses that have the same prefix. Target A target is a device (peripheral) that responds to an operation requested by an initiator (host system).
Page 223 SNMP management. Web View The Web-browser page that opens when users access a SnapServer or SnapScale cluster using their Web browsers, and displays a list of all shares. Windows Domain Authentication Windows-based networks use a domain controller to store user credentials.
Page 224 Mac OS X client 4-13 Authentication a Windows client 4-13 default settings conventions, typographical PR-iv HTTPS/HTTP 4-23 Current Usage Kerberos 4-12 customer support PR-iii NIS domain 4-18 Automatic Load Balancing (ALB) 10400455-001 Dec 2013 ©Overland Storage, Inc. IX-1 ...
Page 225 SnapScale/RAINcloudOS 3.0 Administrator’s Guide Index Data Balancer data import Groups data protection tasks 5-21 creating local 6-22 Data Replication Count 5-37 file-level access for date and time settings joining NIS domain 4-18 Debug Logging 8-11 defaults admin password hardware information pop-up...
Page 226 SnapScale/RAINcloudOS 3.0 Administrator’s Guide Index system/status nodes understanding adding 5-37 Link Aggregation (802.3ad) default page 5-35 Load Balance (ALB) Properties page for nodes 5-36 local groups 6-22 Open Files page Macintosh, supported OS versions OS update maintenance Overland technical support...
Page 227 SnapScale/RAINcloudOS 3.0 Administrator’s Guide Index read-only 4-22 read-write 4-22 RAID software update PR-iii types defined GL-10 Spare Disk Balancer, see Spare Distributor RAINcloudOS Spare Disks page specifications Spare Distributor updating specifications, RAINcloudOS RapidRebuild storage reboot, setting up alert for 8-15...
Page 228 SnapScale/RAINcloudOS 3.0 Administrator’s Guide Index VDS-based iSCSI disks 5-29 volumes capacity reached alert 8-15 default page 5-11 expanding capacity of 5-14 Volume Properties 5-14 VSS-based iSCSI disks 5-29 warranty activation 8-12 Web Management Interface alert messages 2-15 Web Management Interface, overview...

Overland Storage SnapScale Administrator's Manual

Chapter 1 - Overview

Chapter 2 - Setup and Configuration

Chapter 3 - Snapscale Settings

Chapter 4 - Network Access

Chapter 5 - Storage Options

Chapter 6 - Security Options

Click OK to Save Changes (or Cancel to Reset)

When Done with All Your Mappings, Click OK to Activate Them

At the Confirmation Page, Click Save Changes

At the Filesystem Update Option Page, Choose Either Update Filesystem or Do Not

Update Filesystem

Chapter 7 - System Monitoring

Chapter 8 - Maintenance

Chapter 9 - Misc. Options

Appendix A - Backup Solutions

Appendix B - Security and Access

Appendix C - Raincloudos Ports

Appendix D - Troubleshooting

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Summary of Contents for Overland Storage SnapScale